A pharmacist has issued an urgent warning to football fans returning from the World Cup in the United States, as a surge in parasitic infections has left thousands suffering from explosive diarrhoea. The parasite, Cyclospora cayetanensis, has infected nearly 7,000 people across 34 states, with 94 individuals hospitalized in recent weeks.
Outbreak Linked to Contaminated Food and Water
The outbreak is linked to contaminated food and water, though US authorities have yet to identify the exact source. In response, fast-food chain Taco Bell removed lettuce from its menu in some states after investigations suggested a possible link to the outbreak. Symptoms of cyclosporiasis, including watery diarrhoea, stomach cramps, nausea, and fatigue, can take more than a week to appear, meaning fans may still be at risk even if they currently feel fine.
Pharmacist Explains Risks and Symptoms
Karen Hutchinson, Prescribing Pharmacist at Chemist4U, explained how Cyclospora is contracted and who is most at risk. “Cyclospora cayetanensis is a parasite that infects the small intestine and causes an illness known as cyclosporiasis,” she said. “The parasite is commonly found in certain parts of Central and South America, southeast Asia, the Middle East and Africa. In recent days though, it has attracted attention due to a significant rise in infections in the US, with 1,645 confirmed cases, leaving many wondering how this could impact people in the UK.”
Hutchinson noted that the parasite is contracted through drinking unclean water or eating contaminated or improperly washed food. Symptoms typically appear about a week after exposure, making it difficult to pinpoint the source. Without treatment, symptoms can persist for weeks or longer. Most healthy individuals recover without treatment, but those with weakened immune systems are more vulnerable and should seek medical advice.
Advice for Returning Travelers
“At present, the risk remains relatively low for people in the UK, especially given that Cyclospora is not typically spread directly from person to person,” Hutchinson added. “However, it is important that people are aware of the symptoms and when to seek medical advice. If you recently returned from a country experiencing an outbreak, regularly eat uncooked fresh produce, or suspect you have drunk contaminated water, you are likely at greater risk.”
She urged anyone with persistent diarrhoea, inability to keep fluids down, or signs of severe dehydration to seek medical help immediately. “It’s important to drink plenty of fluids to reduce the risk of dehydration and avoid preparing food for others, and remember to maintain good hand hygiene,” she said. “While the current outbreak in the US is not a major cause for concern, it is important to remain vigilant, especially if you have recently returned from the US or experience any symptoms during your travels or upon your return.”
